Machine for forming loops on wire ends.



Patented Nov. 25', I902.

no. 714,426. v

. 'H. WILSON. V

MAC HIN E FOR FORMING L'OUPS ON WIRE ENDS.

(Application filed Apr. 9, 1902.)

4 Sheets-$he et I.

(No Model.)

WITNESSES: M

TH: Nan k pp Z 0 mm 5' 2 v o N d e t n e t a DI H 5 2 v. M 7 0 N MACHINEFUR FORMINGLOOPS 0N WIRE ENDS.

(Application filed ApnQ, 1902.)

4 Sheets-Shoat 1'2.

|NVENTOR WITNESSES:

m: nonms PETERS co PNGTO-LITHQ, WASHINGTON, n, c;

.- No. 7I4,426. Patented Nov. 25,1902.

H. WILSON.

MACHINE FOR FORMING LOOPS ON WIRE ENDS. Application filed Apr. 9, 1902.

(No Model.) 4 Sheets-"Shea 3.

WHNESSES: lNVENTOH No. 7|4,4'2s Patsn ted Nov. 25, I902.

H. WILSON.

MACHINE FOR FORMING LOOPS ON WIRE ENDS.

Appli cation filed A r. 9, 1902.

FIG?

TUNrrEn STATES HENRY WILSON, OF NEW YORK, N. Y.

MACHINE FOR FORMINGLOOPS ON WIRE ENDS.

SPECIFICATION formingpart of Letters Patent No. 714,426, dated November25, 1902.

' Application filed April 9, 1902. Serial No. 102,059. (No model.) I

To all whom it may concern.-

Be it known that I, HENRY WILSON, a citizen of the United States ofAmerica, residing at New York, in the county and State of New York, haveinvented certain new and useful Improvementsin Machines for FormingLoopson Wire Ends, the following being a complete specification of suchmachine with reference position, the inserted wire being shown in dottedlines. Fig. 2 is a side elevation of the same looking toward the frontof Fig. 1. Fig. 3 is another side elevation looking toward the back ofFig. 1. Fig. & is a detail side elevation showing the flattened head ofthe main shaft with the bending mechanism,

the wire being inserted and all parts in their inoperative position.Fig. 5 shows the same view as Fig. 4., the bending mechanism being inits position after effecting the bending of the wire. Fig. 6 is a planview of Fig. 4. Fig. 7 shows the completed wire loop.

The same letters of reference indicate corresponding parts of my machinethroughout the drawings.

Referring to the drawings, A indicates the base-plate of the machine,which is suitably supported, so asto bring the machinery in a properposition for use.

B indicates the main shaft, which is journaled in two bearings upon thebase-plate A. The forward end B of this shaft has a square flattenedform. 19 is a lug secured upon this flattened head B and provided with arecess, so as to support the inserted wire 2 before the bendingoperation is started. 6' is an angular cut-out guide-groove in saidflattened head B, the latter carrying a second lug 11 which also servesas support for the wire .2.

Above lug b a pin b is secured to the head portion 13,laterallyprojecting from the same. Another pin 0 guided by said angulargroove b and projecting from both sides of the flattened head B, carriesat one end a frictionroll 0 while the other end is pivotally attached toa connecting-rod c, the other end of which is fulcrumed at an arm 0,secured at a sliding ring 0 upon the main shaft 13.

The means for operating the machine are exactly the same as in myaforesaid prior application and consist of the following parts:

H is a disk loosely mounted upon the main shaft 13 and driven by anysuitable power.

71. indicates a coupling device for throwing disk H into engagement withthe main shaft. This coupling is operated by a foot -lever which at thesame time effects the shifting of the aforesaid sliding ringC by'meansof a connecting-rod D and lever D.- The upper end of the latter formsafork embracing said sliding ring, which, although loosely mounted uponshaft B, so as to allow the sliding motion, is engaged with the same bya spline connection.

The coupling h is operated through the following combination: A link (1is pivotally connected to the lever D and to a crank-arm 01', securedupon shaft K, which is journaled in bearings downwardly projecting fromthe base-plate A. On one side of this shaftK an arm'K is secured,carrying a swinging lever L, one end of which is connected with. the armK by a spring 70, while the other end is formed to a hook Z. Ahorizontal lever G, fulcrumed upon the base-plate A, is placed so astobe engaged by said book 6. This horizontal lever G is drawn toward hookZ of the swinging lever L by means of a spring on. In order to raise thespring-connected end of the swinging lever L for releasing lever Gr whensufliciently drawn back, as indicated in dotted lines in Fig. 3, a blockP, with a suitable camsurface, is provided on a frame P, which isscrewed upon the base-plate A. The other end of this lever G isconnected withasliding ring E by means of apin' projecting from saidlever and loosely engaged by the projecting side flanges ofsaid slidingring, which operates the coupling h of the driving-disk H.

The amount of revolutions of the main shaft is limited by the followingmeans: A pinion N is mounted upon the outer end of shaft B, meshing witha gear N upon another shaft F, alsojournaled in bearings projecting fromthe base-plate A. This gearing may be of any suitable ratio, so as toallow several revolutions of the main shaft 13 during one revolution ofshaft F. A disk F is secured on shaft F, having a suitable recess for apin 9, laterally projecting at G from the horizontal lever G.

The clamp device for tightly pressing the free end of the wire .2 afterbendinga loop to the long end of the wire body, so as to allow thetwisting operation,is of the same construction as in my aforesaid priorapplication, and comprisesasupport R, screwed upon the baseplate A, afixed block laterally projecting from this support, and an oscillatingclamplever R, fulcrumed at the support R, so as to form a clamp withsaid fixed block. R is a connecting-rod pivoted to the oscillatingclamp-lever R and to the foot-lever, thereby elfecting the operation ofthe clamp device by depression of the latter.

The bending of the loop is effected in the following manner: The wiresis inserted in a position as indicated in Figs. 4 and 6. In depressingthe foot-lever the upper forked end of the lever D operates the slidingring 0, thus shifting pin 0 through the medium of connecting-rod c,upwardly in its guidegroove 1), whereby friction-roll c forces wire 2around pin b and during the last part of its motion toward the long endof the wire body to a position as shown in Fig. 5. In this moment theclamp device comes into effect, thus holding the two wire ends of theso-formed loop tightly together, while at the same time the couplingthrows the drivingdisk H into engagement with the main shaft B, therebystarting the twisting operation, which is limited by pin g entering therecess in disk F after a single revolution of the same has beenelfected.

Having now fully described my invention relating to improvements informing loops on wire ends, what I claim, and desire to secure byLetters Patent, is

1. In combination with a machine for forming loops on wire ends, awire-bending device, comprising a shaft, a flattened head on said shaft,an angular cut-out guide-groove in this flattened head, a pin sliding insaid groove and projecting with both ends from the flattened head, oneof these projecting ends of said pin carrying a friction-roll, so as toeffect bending of the wire, a fixed pin, laterally projecting from theflattened head to resist this bending operation, a lug secured belowsaid pin so as to support the wire before and during the bendingoperation, and means for operating this wire-bending device comprising aconnecting-rod and a sliding ring on said shaft, substantially as andfor the purpose set forth.

2. In combination with a machine for forming loops on wire ends, awire-bending device, comprising a shaft, a flattened head on said shaft,an angular cut-out guide-groove in this flattened head, a pin sliding insaid groove and projecting with both ends from the flattened head, oneof these projecting ends of said pin carrying a friction-roll, so as toeffect bending of the wire, a fixed pin, laterally projecting from theflattened head to resist this bending operation, a lug secured belowsaid pin, anotherlug having asuitable recess and being also laterallysecured upon the flattened head, both lugs being arranged so as tosupport the wire before and during the bending operation, and means foroperating this Wire-bending device comprising a connecting-rod and asliding ring on said shaft, substantially as and for the purpose setforth.

New York, N. Y., 24th day of March, 1902.

HENRY WILSON.

Witnesses:

BRUNO VON BiiLTzINGsLoWEN, PAUL SADISOH.

